CVE-2026-72629

Authorization Bypass Through User-Controlled Key in Kibana Leading to Cross-Space Access to Machine Learning Trained Models

HIGH
7.1
CVSS Score
Published: August 13, 2026 at 07:13 PM UTC
Updated: September 2, 2026 at 02:32 PM UTC
1 product affected across 1 vendorKibana

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Severity
HIGH7.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized cross-space access via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). The result is disclosure of inference output from a trained model in a different space that the user is not authorized to list, read, or use, which exposes the behavior of a model. The same pattern also reached the deployment stop and deployment update operations, allowing an active trained model deployment in another space to be stopped or to have its allocated resources altered.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

8.19.0 ≤ v ≤ 8.19.198.19.0 ≤ v < 8.19.209.0.0 ≤ v ≤ 9.4.49.0.0 ≤ v < 9.4.58.19.09.0.09.5.0
Affected range stops below 8.19.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.4.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHelastic
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-639

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